Best film of all time?

The Independent runs their top 20 in the 100 best films of all time series.
Guess what film critic Anthony Quinn plumps for at No1?
That's right, All About Eve, the 1950 Joseph L Mankiewicz production that starred Bette Davis.
I confess I've never heard of it, or six of the other movies in the top 20.
But at 13 he's gone for my choice.